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350. (WO2009086278) PROVIDING WI-FI LOCATION INFORMATION TO A MOBILE DEVICE IN ORDER TO ESTIMATE ITS POSITION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2009/086278 International Application No.: PCT/US2008/087969
Publication Date: 09.07.2009 International Filing Date: 22.12.2008
IPC:
H04W 24/00 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
24
Supervisory, monitoring or testing arrangements
Applicants:
BRACHET, Nicolas [US/US]; US (UsOnly)
ALIZADEH-SHABDIZ, Farshid [US/US]; US (UsOnly)
NELSON, Joel, N. [US/US]; US (UsOnly)
JONES, Russel, K. [US/US]; US (UsOnly)
SKYHOOK WIRELESS, INC. [US/US]; 332 Congress St., 3rd Floor Boston, MA 02210, US (AllExceptUS)
Inventors:
BRACHET, Nicolas; US
ALIZADEH-SHABDIZ, Farshid; US
NELSON, Joel, N.; US
JONES, Russel, K.; US
Agent:
DICHIARA, Peter, M.; Wilmer Cutler Pickering Hale and Dorr LLP 60 State Street Boston, MA 02109, US
Priority Data:
11/966,67328.12.2007US
Title (EN) PROVIDING WI-FI LOCATION INFORMATION TO A MOBILE DEVICE IN ORDER TO ESTIMATE ITS POSITION
(FR) FOURNITURE D'INFORMATIONS D'EMPLACEMENT WI-FI À UN DISPOSITIF MOBILE AFIN D'ESTIMER SA POSITION
Abstract:
(EN) A method of providing a relevant subset of information to a client device is based in part on scanning for Wi-Fi access points within range of the client device, using a Wi-Fi database that covers a large target region to retrieve information about these access points, using this information to estimate the position of the mobile client device, selecting a limited region in the vicinity of the estimated location of the client device, and providing information about Wi-Fi access points within this limited region to the client. For efficient transfer and maintenance of data, the target region may be divided into a hierarchy of fixed geographical tiles.
(FR) L'invention concerne un procédé de fourniture d'un sous-ensemble pertinent d'informations à un dispositif client basé en partie sur le balayage de points d'accès Wi-Fi dans la portée du dispositif client, utilisant une base de données Wi-Fi qui couvre une grande région cible pour récupérer des informations sur ces points d'accès, l'utilisation de ces informations pour estimer la position du dispositif client mobile, la sélection d'une région limitée au voisinage de l'emplacement estimé du dispositif client, et la fourniture d'informations sur les points d'accès Wi-Fi dans cette région limitée au client. Pour un transfert et une maintenance efficaces de données, la région cible peut être divisée en une hiérarchie de tuiles géographiques fixes.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)